The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 27, 2010

Filed:

Feb. 01, 2006
Applicants:

Young-min Chae, Suwon-si, KR;

Joong-gi Kwon, Gunpo-si, KR;

Chul-woo OH, Suwon-si, KR;

Jong-hwa Cho, Suwon-si, KR;

Sang-yong Han, Suwon-si, KR;

Inventors:

Young-min Chae, Suwon-si, KR;

Joong-gi Kwon, Gunpo-si, KR;

Chul-woo Oh, Suwon-si, KR;

Jong-hwa Cho, Suwon-si, KR;

Sang-yong Han, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An analog control application specific integrated circuit (ASIC) apparatus for a high voltage power supply (HVPS) in an image for apparatus, and a method for controlling the HVPS are provided. The HVPS includes a transformer transforming an AC signal to a high voltage signal and a voltage doubler outputting a DC high voltage for the HVPS. The ASIC includes an analog control circuit configured as a one-chip ASIC that converts a predetermined DC level signal to a high frequency switching signal using a switching component and outputs the converted high frequency switching signal to a primary winding of the transformer. If the high voltage output signal output from the voltage doubler is not feedbacked, the switching component high frequency switches a received driving signal of a gate driver, and outputs the high frequency switched signal to the transformer.


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